SAN FRANCISCO -- Barry Bonds, baseball's home run king, was indicted for perjury and obstruction of justice Thursday and could face prison instead of the Hall of Fame for telling a federal grand jury he did not knowingly use performance-enhancing drugs.

The indictment, culminating a four-year investigation into steroid use by elite athletes, charged Bonds with four counts of perjury and one of obstruction of justice. If convicted, he could be sentenced to a maximum of 30 years in prison.